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https://repo.or.cz/socat.git
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Catch the case of empty SNI host to prevent OpenSSL error
This commit is contained in:
Gerhard Rieger
parent
43eb003245
commit
797d0f9695
4 changed files with 40 additions and 181 deletions
3
CHANGES
3
CHANGES
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@ -25,6 +25,9 @@ Corrections:
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but remembers the failure and allows further processing.
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Thanks to Luke Jones for reporting this issue.
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Now catching the case of empty SNI host to prevent OpenSSL error.
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This is related to Red Hat issue 2081414.
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Coding:
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Introduced groups_t instead of uint32_t, for more flexibility
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172
gatherinfo.sh
172
gatherinfo.sh
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@ -1,172 +0,0 @@
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#! /bin/sh
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# source: gatherinfo.sh
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# Copyright Gerhard Rieger and contributors (see file CHANGES)
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# Published under the GNU General Public License V.2, see file COPYING
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#set -vx
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# use this script after successful porting
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# provide the platform name as argument with no dots, e.g. HPUX-11-0
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# it generates the files:
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# Config/Makefile.PLATFORM
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# Config/config.PLATFORM.h
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# Config/socat.PLATFORM.out
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#
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# Config/config.PLATFORM.log
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# Config/compile.PLATFORM.log
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# Config/test.PLATFORM.log
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VERBOSE=
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LOGGING=
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INTERACTIVE=
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CONFOPTS=
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PLATFORM=
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OUTPUT='>/dev/null'
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# how to echo special characters?
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if [ `echo "x\c"` = "x" ]; then E=""
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elif [ `echo -e "x\c"` = "x" ]; then E="-e"
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fi
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while [ -n "$1" ]; do
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case "$1" in
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-v) VERBOSE=1; shift;; # tell about progress
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-d) LOGGING=1; shift;; # show complete output
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-i) INTERACTIVE=1; shift;; # diff and ask before overriding old files
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-*) CONFOPTS="$CONFOPTS $1"; shift;;
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*) PLATFORM="$1"; break;;
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esac
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done
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#if [ -z "$PLATFORM" ]; then
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# echo "please specify a configuration name, e.g. `uname -s`-`uname -r|tr '.' '-'`!" >&2; exit 1;
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#fi
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if [ $# -eq 0 ]; then
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echo $E "usage: $0 [-v] [-i] [configure options ...] platform" >&2
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echo $E "\t-v\t\tverbose (print actual command)" >&2
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echo $E "\t-d\t\tdump command outputs" >&2
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echo $E "\t-i\t\tinteractive (ask before overwriting something)" >&2
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echo $E "\tconfigure options\toptions for configure script, e.g. --disable-ip6" >&2
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echo $E "\tplatform\tdescribe your OS, e.g. `uname -s`-`uname -r|tr '.' '-'`" >&2
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exit 1
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fi
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case "$PLATFORM" in
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*.*) echo "platform name must not contain '.'" >&2; exit 1;;
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esac
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# now, lets begin!
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if [ -f Makefile ]; then
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COMMAND="make distclean"
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[ "$VERBOSE" ] && echo "$COMMAND"
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$COMMAND >/dev/null 2>&1 || echo "*** failed: $COMMAND" 1>&2
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fi
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# implicitly generates Makefile, config.h, config.log
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COMMAND="./configure $CONFOPTS"
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LOGFILE="compile.log"
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[ "$VERBOSE" ] && echo "$COMMAND"
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if [ "$LOGGING" ]; then
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{ $COMMAND; echo "$?" >socat.rc; } 2>&1 |tee $LOGFILE;
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if [ `cat socat.rc` -ne 0 ]; then echo "*** failed: $COMMAND" 1>&2; exit 1; fi
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else
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$COMMAND >$LOGFILE 2>&1 || { echo "*** failed: $COMMAND" 1>&2; exit 1; }
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fi
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COMMAND="make -k"
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LOGFILE="compile.log"
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[ "$VERBOSE" ] && echo "$COMMAND"
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if [ "$LOGGING" ]; then
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{ $COMMAND; echo "$?" >socat.rc; } 2>&1 |tee -a $LOGFILE;
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if [ `cat socat.rc` -ne 0 ]; then echo "*** failed: $COMMAND" 1>&2; exit 1; fi
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else
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$COMMAND >>$LOGFILE 2>&1 || { echo "*** failed: $COMMAND" 1>&2; exit 1; }
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fi
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# generates socat.out
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COMMAND="make info"
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[ "$VERBOSE" ] && echo "$COMMAND"
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$COMMAND >/dev/null || echo "*** failed: $COMMAND" 1>&2
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COMMAND="./test.sh"
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LOGFILE="test.log"
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[ "$VERBOSE" ] && echo "$COMMAND"
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if [ "$LOGGING" ]; then
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{ $COMMAND; echo "$?" >socat.rc; } 2>&1 |tee $LOGFILE;
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if [ `cat socat.rc` -ne 0 ]; then
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echo "*** failed: $COMMAND" 1>&2
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if [ `cat socat.rc` -ge 128 ]; then
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exit 1
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fi
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fi
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else
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$COMMAND >$LOGFILE 2>&1 || echo "*** failed: $COMMAND" 1>&2
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fi
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FILES=
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b=Makefile; e=; f=$b; p=Config/$b.$PLATFORM
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if [ "$INTERACTIVE" -a -f $p ]; then
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if ! diff $p $f; then
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cp -pi $f $p
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fi
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else
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cp -p $f $p
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fi
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FILES="$p"
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b=config; e=h; f=$b.$e; p=Config/$b.$PLATFORM.$e
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if [ "$INTERACTIVE" -a -f $p ]; then
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if ! diff $p $f; then
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cp -pi $f $p
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fi
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else
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cp -p $f $p
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fi
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FILES="$FILES $p"
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b=socat; e=out; f=$b.$e; p=Config/$b.$PLATFORM.$e
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if [ "$INTERACTIVE" -a -f $p ]; then
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if ! diff $p $f; then
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cp -pi $f $p
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fi
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else
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cp -p $f $p
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fi
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FILES="$FILES $p"
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b=config; e=log; f=$b.$e; p=Config/$b.$PLATFORM.$e
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if [ "$INTERACTIVE" -a -f $p ]; then
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if ! diff $p $f; then
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cp -pi $f $p
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fi
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else
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cp -p $f $p
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fi
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FILES="$FILES $p"
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b=compile; e=log; f=$b.$e; p=Config/$b.$PLATFORM.$e
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if [ "$INTERACTIVE" -a -f $p ]; then
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if ! diff $p $f; then
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cp -pi $f $p
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fi
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else
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cp -p $f $p
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fi
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FILES="$FILES $p"
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b=test; e=log; f=$b.$e; p=Config/$b.$PLATFORM.$e
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if [ "$INTERACTIVE" -a -f $p ]; then
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if ! diff $p $f; then
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cp -pi $f $p
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fi
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else
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cp -p $f $p
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fi
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FILES="$FILES $p"
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echo "output files:"
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echo "$FILES"
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41
test.sh
41
test.sh
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@ -11178,6 +11178,12 @@ esac
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N=$((N+1))
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# Does Socat have -d0 option?
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opt_d0=
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if $SOCAT -h |grep -e -d0 >/dev/null; then
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opt_d0="-d0"
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fi
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# socat up to 1.7.2.1 did only shutdown() but not close() an accept() socket
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# that was rejected due to range, tcpwrap, lowport, or sourceport option.
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# This file descriptor leak could be used for a denial of service attack.
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@ -11202,7 +11208,7 @@ if [ $RLIMIT_NOFILE -gt 1024 ]; then
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RLIMIT_NOFILE="$(ulimit -n)"
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fi
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newport tcp4
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CMD0="$TRACE $SOCAT -d0 $opts TCP-LISTEN:$PORT,$REUSEADDR,range=$LOCALHOST:255.255.255.255 PIPE"
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CMD0="$TRACE $SOCAT $opt_d0 $opts TCP-LISTEN:$PORT,$REUSEADDR,range=$LOCALHOST:255.255.255.255 PIPE"
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CMD1="$TRACE $SOCAT $opts -t 0 /dev/null TCP:$SECONDADDR:$PORT,bind=$SECONDADDR"
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CMD2="$TRACE $SOCAT $opts - TCP:$LOCALHOST:$PORT,bind=$LOCALHOST"
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printf "test $F_n $TEST... " $N
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@ -14997,7 +15003,7 @@ pid2=$!
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sleep 2
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cpids="$(childpids $pid0 </dev/null)"
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kill $pid1 $pid2 $cpids $pid0 2>/dev/null; wait
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if echo -e "$da 2\n$da 1" |diff - $tf >$tdiff; then
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if $ECHO "$da 2\n$da 1" |diff - $tf >$tdiff; then
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$PRINTF "$OK\n"
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if [ "$VERBOSE" ]; then echo "$CMD0 &"; fi
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if [ "$DEBUG" ]; then cat "${te}0" >&2; fi
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@ -15039,19 +15045,29 @@ TEST="$NAME: Option -S can turn off logging of SIGTERM"
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# Start Socat with option -S 0x0000, kill it with SIGTERM
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# When no logging entry regarding this signal is there, the test succeeded
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if ! eval $NUMCOND; then :;
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elif ! $SOCAT -h | grep -e " -S\>" >/dev/null; then
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$PRINTF "test $F_n $TEST... ${YELLOW}Option -S not available${NORMAL}\n" $N
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numCANT=$((numCANT+1))
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listCANT="$listCANT $N"
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elif ! F=$(testfeats PIPE); then
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$PRINTF "test $F_n $TEST... ${YELLOW}Feature $F not configured${NORMAL}\n" $N
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numCANT=$((numCANT+1))
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listCANT="$listCANT $N"
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elif ! A=$(testaddrs PIPE); then
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$PRINTF "test $F_n $TEST... ${YELLOW}Address $A not available${NORMAL}\n" $N
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numCANT=$((numCANT+1))
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listCANT="$listCANT $N"
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else
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tf="$td/test$N.stdout"
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te="$td/test$N.stderr"
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tdiff="$td/test$N.diff"
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da="test$N $(date) $RANDOM"
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newport tcp4 # or whatever proto, or drop this line
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CMD0="$TRACE $SOCAT $opts -S 0x0000 PIPE PIPE"
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printf "test $F_n $TEST... " $N
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$CMD0 >/dev/null 2>"${te}0" &
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pid0=$!
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relsleep 1 # give process time to start
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kill -TERM $pid0 2>/dev/null; wait
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if ! grep -q "exiting on signal" ${te}0; then
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if ! grep "exiting on signal" ${te}0 >/dev/null; then
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$PRINTF "$OK\n"
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if [ "$VERBOSE" ]; then echo "$CMD0 &"; fi
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if [ "$DEBUG" ]; then cat "${te}0" >&2; fi
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@ -15079,19 +15095,30 @@ TEST="$NAME: Option -S can turn on logging of signal 31"
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# Start Socat with option -S 0x80000000, kill it with -31
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# When a logging entry regarding this signal is there, the test succeeded
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if ! eval $NUMCOND; then :;
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elif ! $SOCAT -h | grep -e " -S\>" >/dev/null; then
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$PRINTF "test $F_n $TEST... ${YELLOW}Option -S not available${NORMAL}\n" $N
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numCANT=$((numCANT+1))
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listCANT="$listCANT $N"
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elif ! F=$(testfeats PIPE); then
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$PRINTF "test $F_n $TEST... ${YELLOW}Feature $F not configured${NORMAL}\n" $N
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numCANT=$((numCANT+1))
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listCANT="$listCANT $N"
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elif ! A=$(testaddrs PIPE); then
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$PRINTF "test $F_n $TEST... ${YELLOW}Address $A not available${NORMAL}\n" $N
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numCANT=$((numCANT+1))
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listCANT="$listCANT $N"
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else
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tf="$td/test$N.stdout"
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te="$td/test$N.stderr"
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tdiff="$td/test$N.diff"
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da="test$N $(date) $RANDOM"
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newport tcp4 # or whatever proto, or drop this line
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CMD0="$TRACE $SOCAT $opts -S 0x80000000 PIPE PIPE"
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printf "test $F_n $TEST... " $N
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$CMD0 >/dev/null 2>"${te}0" &
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pid0=$!
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relsleep 1 # give process time to start
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kill -31 $pid0 2>/dev/null; wait
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if grep -q "exiting on signal" ${te}0; then
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if grep "exiting on signal" ${te}0 >/dev/null; then
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$PRINTF "$OK\n"
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if [ "$VERBOSE" ]; then echo "$CMD0 &"; fi
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if [ "$DEBUG" ]; then cat "${te}0" >&2; fi
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@ -448,8 +448,9 @@ int _xioopen_openssl_connect(struct single *xfd,
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#if defined(HAVE_SSL_set_tlsext_host_name) || defined(SSL_set_tlsext_host_name)
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if (!no_sni) {
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/*Warn1("_xioopen_openssl_connect(): calling SSL_set_tlsext_host_name(snihost=\"%s\")", snihost?snihost:"NULL");*/
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if (!SSL_set_tlsext_host_name(ssl, snihost)) {
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if (snihost == NULL || strlen(snihost) == 0) {
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Warn("refusing to set empty SNI host name");
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} else if (!SSL_set_tlsext_host_name(ssl, snihost)) {
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Error1("Failed to set SNI host \"%s\"", snihost);
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sycSSL_free(xfd->para.openssl.ssl);
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xfd->para.openssl.ssl = NULL;
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